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This research study is looking at tumor tissue samples from patients who have undergone surgery for advanced stage III or stage IV ovarian epithelial cancer. Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn how tumor infiltrating T cells can predict how patients will respond to treatment.

The Kaplan-Meier method will be used to estimate the survival curves, and the log-rank test will be used to test the difference between survival curves for TIL positive and negative patients. All of the tests will be two-sided and the significant levels will be set a 0.05.

Progression-free survival curves [ Time Frame: Baseline ]

The Kaplan-Meier method will be used to estimate the survival curves, and the log-rank test will be used to test the difference between survival curves for TIL positive and negative patients. All of the tests will be two-sided and the significant levels will be set a 0.05.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.